Puerto Rico · January
Low seasonPuerto Rico · North America
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ø day, range from coolest to warmest dayØ dayrange | 29° (84°)26– (79–)31 (88) | 29° (84°)26– (79–)31 (88) | 29° (84°)26– (79–)31 (88) | 30° (86°)26– (79–)33 (91) | 31° (88°)27– (81–)33 (91) | 32° (90°)28– (82–)34 (93) | 32° (90°)28– (82–)33 (91) | 32° (90°)28– (82–)34 (93) | 32° (90°)29– (84–)34 (93) | 32° (90°)28– (82–)34 (93) | 30° (86°)27– (81–)32 (90) | 29° (84°)26– (79–)31 (88) |
Ø night, range from coldest to warmest nightØ nightrange | 23° (73°)20– (68–)24 (75) | 23° (73°)21– (70–)24 (75) | 23° (73°)21– (70–)24 (75) | 24° (75°)21– (70–)25 (77) | 25° (77°)22– (72–)26 (79) | 26° (79°)23– (73–)27 (81) | 26° (79°)24– (75–)27 (81) | 27° (81°)24– (75–)28 (82) | 26° (79°)24– (75–)28 (82) | 26° (79°)23– (73–)27 (81) | 25° (77°)22– (72–)26 (79) | 24° (75°)21– (70–)25 (77) |
☀️Sunshine | 7h UV 7 | 7h UV 8 | 8h UV 9 | 8h UV 9 | 8h UV 9 | 8h UV 9 | 8h UV 8 | 7h UV 9 | 7h UV 8 | 7h UV 8 | 6h UV 7 | 7h UV 6 |
🌊Water Temp | 27° (81°) | 27° (81°) | 27° (81°) | 27° (81°) | 28° (82°) | 29° (84°) | 29° (84°) | 29° (84°) | 30° (86°) | 30° (86°) | 29° (84°) | 28° (82°) |
🌧Rain Days | 10d104mm (4.1") | 8d83mm (3.3") | 7d66mm (2.6") | 9d134mm (5.3") | 9d141mm (5.5") | 9d122mm (4.8") | 12d157mm (6.2") | 12d168mm (6.6") | 11d131mm (5.2") | 12d145mm (5.7") | 13d186mm (7.3") | 12d125mm (4.9") |
Best travel time current monthØ = average · small figures = range: coolest–warmest day / coldest–warmest nightClimate data 2005–2025 · Source: ERA5 + station data
Still off-season — flights and hotels significantly cheaper than in February.
January in Puerto Rico is generally manageable, but with 10 rain days it's not a reliably sunny month. Better conditions can be found in February and March.
Daytime highs average 29°C (84°F), cooling to 23°C (73°F) at night (daily average: 26°C (79°F)). Peaks reach around 31°C (88°F), the coldest nights around 20°C (68°F). The sun shines an average of 7 hours per day; there are 10 rain days with 104 mm (4.1 in) total. The water is a warm 27°C (81°F) — perfect for snorkelling and swimming.
Light clothing is enough — the evenings stay mild too. Good conditions for sightseeing and excursions.
The most pleasant time for city and beach. Highs sit around 28°C (82°F), rain days become fewer, and San Juan's old town is easy to explore on foot. In the Christmas weeks Puerto Ricans celebrate with parrandas and long fiestas that stretch into mid-January.
Events & Festivals
- Fiestas de la Calle San Sebastiánvariable (mid to late January, Thursday to Sunday)
Four days of street festival in Old San Juan, the island's biggest celebration and the finale of the long Christmas season. Live music, crafts such as woodcarving and printmaking, and around a million visits in four days turn the old town into one big party.
Packing list for Puerto Rico in January
- Light summer clothes
- Swimwear and beach towel
- Sunscreen
- Sunglasses
- Light umbrella or rain poncho
- Insect repellent
- Travel first-aid kit
Frequently Asked Questions
- Is January a good time to visit Puerto Rico?
- January is not an optimal month for Puerto Rico (Score: 73/100), but it is manageable. For better conditions, consider February and March.
- How warm is it in Puerto Rico in January?
- In January, Puerto Rico sees daily highs of 29°C (84°F). Nights cool to 23°C (73°F), with a daily average of 26°C (79°F). Peaks reach around 31°C (88°F), the coldest nights around 20°C (68°F).
- How much rain falls in Puerto Rico in January?
- In January, Puerto Rico receives an average of 104 mm (4.1 in) of rain over 10 rain days. An umbrella may occasionally be needed.
- How many sunshine hours does Puerto Rico get in January?
- Puerto Rico averages 7 sunshine hours per day in January — close to the annual average.
- How warm is the water in Puerto Rico in January?
- Water temperature in Puerto Rico in January averages 27°C (81°F) — ideal for swimming and snorkelling.
